Hybrid tea rose plant named &#39;jacmpiad&#39;

ABSTRACT

A hybrid tea rose plant characterized by its vigorous, upright growth and glossy, dark green foliage; and its high centered, large flowers, the petals of which have a novel blend of red shades of color.

[0001] The present invention relates to a new and distinct variety ofrose plant of the hybrid tea class which was originated by me bycrossing the variety MACauck, U.S. Plant Pat. No. 5,519, with an unnamedseedling.

[0002] The primary objective of this breeding was to produce a new rosevariety having the long stems, high centered flower form and vigorousgrowth of the female parent combined with the large flowers, glossyfoliage and disease resistance of the coral pink flowered hybrid teamale parent. The objective was substantially achieved, along with otherdesirable improvements, as evidenced by the following unique combinationof characteristics that are outstanding in the new variety and thatdistinguish it from its parents, as well as from all other varieties ofwhich I am aware:

[0003] 1. Vigorous, upright growth;

[0004] 2. Glassy, dark green foliage;

[0005] 3. High centered large flowers;

[0006] 4. Novel blend of colors on the petals; and

[0007] 5. Resistance to rust and powdery mildew.

[0008] Asexual reproduction of this new variety by budding on Dr. Hueyunderstock, as performed at Wasco, Calif., shows that the foregoing andall other characteristics and distinctions come true to form and areestablished and transmitted through succeeding propagations.

[0009] The accompanying illustration shows typical specimens of thevegetative growth and flowers of this new variety in different stages ofdevelopment, depicted in color as nearly true as it is reasonablypossible to make the same in a color illustration of this character.

[0010] The following is a detailed description of my new rose cultivarwith color descriptions using terminology in accordance with The RoyalHorticultural Society (London) colour chart, except where ordinarydictionary significance of color is indicated.

[0011] Parentage:

[0012]Seed parent.—MACauck (U.S. Plant Pat. No. 5,519).

[0013]Pollen parent.—Unnamed (Unnamed×Unnamed).

[0014] Classification:

[0015]Botanical.—Rosa hybrida.

[0016]Commercial.—Hyrid tea.

FLOWER

[0017] Observations made from specimens grown in a garden environment atSomis, Calif. in January, 1999 to November, 2000.

[0018] Blooming Habit: Continuous.

[0019] Bud:

[0020]Size.—About 1¾ inches long when the petals start to unfurl.

[0021]Form.—The bud form is long, pointed ovoid.

[0022]Color.—When sepals first divide, bud color is Red Group 45C asseptals crack. As the sepals drop, the outer 85% of the petal is RedGroup 45C. The inner 15% is Red Group 45D except along the midrib whereit remains Red Group 45C. When half blown, the upper sides of the petalsare Red Group 45C on the petal margin changing to Red Group 45D. Thebase of the petal has a large half moon (½″×½″) of Yellow Group 4D. Thelower sides of the petals are Red Group 45C on petal margin; the rest ofthe petal surface is Red Group 45D fading in the center of petal towardRed Group 55D with veins showing clearly. Veins are slightly darker incolor.

[0023]Sepals.—Color: Green Group 138B. Surface texture: Covered in finehairs. There are three normally to heavily appendaged sepals. There aretwo unappendaged sepals with hairy edges.

[0024]Receptacle.—Color: Yellow-Green Group 146B. Shape: Funnel. Size:Medium (¼″×¼″). Surface: Smooth.

[0025]Peduncle.—Length: Medium, averaging about 3½ inches. Surface:Smooth. Color: Yellow-Green Group 146B except when exposed to brightsunlight. Then it is close to Greyed-Red Group 178B. Strength: Stiff,erect.

[0026] Bloom:

[0027]Size.—Large. Average open size is 4½ inches.

[0028]Borne.—Singly.

[0029]Stems.—Strength: Strong. Average length is about 16-18 inches.

[0030]Form.—When first open: High centered. Permanence: Retains its formto the end, outer petals curl back.

[0031]Petalage.—Number of petals under normal conditions: 30.

[0032]Color.—The upper sides of the petals are Red Group 45C on thepetal margin changing to Red Group 45D over the rest of the petal. Thebase of the petal has a large half moon (½″×½″) of Yellow-Group 4D. Thereverse sides of the petals are Red Group 45C on the petal margin. Therest of the petal surface is Red Group 45D fading in the center of thepetal toward Red Group 55D with veins showing clearly. Veins areslightly darker in color. The base of each petal has a small area about⅛″×⅛″ of Yellow Group 7C on the upper petal surface and Yellow Group 5Don the lower petal surface. The major color on the upper side is RedGroup 45D.

[0033]Variegations.—None.

[0034]Discoloration.—The general tonality at the end of the first day:No change. At the end of the third day: No change. By day 4 or 5, as thepetals unfold, the upper surface color deepens and spreads on the petalsurface until at petal drop, the entire surface, except for the largearea of Yellow Group 4D, becomes Red Group 45C. The lower surface staysunchanged through petal drop.

[0035]Fragrance.—Slight. (Too slight to characterize).

[0036] Petals:

[0037]Texture.—Thick, leathery.

[0038]Shape.—Round.

[0039]Form.—Tips slightly recurved.

[0040]Arrangement.—Imbricated. There are no petaloids in the center.

[0041]Persistence.—Petals drop off cleanly before drying.

[0042]Lastingness.—On the plant: Fair (about 5-7 days).

[0043]As a cut flower.—Fair (about 7 days).

[0044] Reproductive Parts:

[0045]Anthers.—Size: Medium.

[0046]Quantity.—Many.

[0047]Color.—Yellow-Orange Group 16C.

[0048]Arrangement: Regular around styles.

[0049]Filaments.—Color: Yellow Group 8B.

[0050]Pollen.—Color: Yellow-Orange Group 16C.

[0051]Hips.—No natural hip set has been observed.

[0052]Styles.—Color: Green-White Group 157D.

[0053]Stigmas.—Color: Yellow-White Group 158B.

[0054] Plant:

[0055]Form.—Bush.

[0056]Growth.—Vigorous. At maturity, height is 6 feet, width is 4 feet,in Somis, Calif.

[0057] Foliage: Number of leaflets on normal mid-stem leaves: 5.

[0058]Size.—Large (6 inches long×5 inches wide).

[0059]Quantity.—Abundant.

[0060]Color.—New foliage: Upper surface: Greyed-Red Group 178A. Lowersurface: Greyed-Red Group 178A. Old foliage: Upper surface: Green Group136A. Lower surface: Green Group 138B.

[0061] Leaflets:

[0062]Shape.—Pointed oval.

[0063]Texture.—Leathery, glossy.

[0064]Edge.—Serrated.

[0065]Serration.—Single, small.

[0066]Petiole rachis.—Color: Yellow-Green Group 147D.

[0067]Petiole underside.—Smooth with an occassional prickle.

[0068]Stipules.—Medium (about ½ inch).

[0069]Disease resistance.—Susceptible to mildew and blackspot, resistantto rust under normal growing conditions.

[0070] Wood:

[0071]New wood.—Color: Yellow-Green Group 147B often with areas ofGreyed-Purple Group 184A. Bark: Smooth.

[0072]Old wood.—Color: Green Group 138B. Bark: Smooth.

[0073] Prickles:

[0074]Quantity.—On main canes from base: Ordinary.

[0075]On laterals from main canes: Ordinary.

[0076]Form.—Medium, hooked downward.

[0077]Color when young.—Greyed-Purple Group 183A.

[0078]Color when mature.—Greyed-Orange Group 173C.

[0079] Small Prickles:

[0080]Quantity.—On main stalks: None. On laterals: None.

I claim:
 1. A new and distinct variety of rose plant of the hybrid teaclass, substantially as herein shown and described, characterizedparticularly as to novelty by its vigorous, upright growth and glossy,dark green foliage; and its large, high centered flowers, the petals ofwhich have a novel blend of red shades of color.